From: Martin KaFai Lau <kafai@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
David Miller <davem@davemloft.net>, <kernel-team@fb.com>,
<netdev@vger.kernel.org>
Subject: [PATCH bpf-next v3 01/11] bpf: Save PTR_TO_BTF_ID register state when spilling to stack
Date: Mon, 30 Dec 2019 22:20:39 -0800 [thread overview]
Message-ID: <20191231062039.280835-1-kafai@fb.com> (raw)
In-Reply-To: <20191231062037.280596-1-kafai@fb.com>
This patch makes the verifier save the PTR_TO_BTF_ID register state when
spilling to the stack.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
---
kernel/bpf/verifier.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 4983940cbdca..da1a10c43fcd 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1915,6 +1915,7 @@ static bool is_spillable_regtype(enum bpf_reg_type type)
case PTR_TO_TCP_SOCK:
case PTR_TO_TCP_SOCK_OR_NULL:
case PTR_TO_XDP_SOCK:
+ case PTR_TO_BTF_ID:
return true;
default:
return false;
--
2.17.1
next prev parent reply other threads:[~2019-12-31 6:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-31 6:20 [PATCH bpf-next v3 00/11] Introduce BPF STRUCT_OPS Martin KaFai Lau
2019-12-31 6:20 ` Martin KaFai Lau [this message]
2019-12-31 6:20 ` [PATCH bpf-next v3 02/11] bpf: Avoid storing modifier to info->btf_id Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 03/11] bpf: Add enum support to btf_ctx_access() Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 04/11] bpf: Support bitfield read access in btf_struct_access Martin KaFai Lau
2020-01-02 18:04 ` Yonghong Song
2019-12-31 6:20 ` [PATCH bpf-next v3 05/11] bpf: Introduce BPF_PROG_TYPE_STRUCT_OPS Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 06/11] bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS Martin KaFai Lau
2020-01-02 18:33 ` Yonghong Song
2020-01-07 16:00 ` Daniel Borkmann
2020-01-07 18:55 ` Martin Lau
2020-01-07 21:44 ` Daniel Borkmann
2020-01-08 1:53 ` Martin Lau
2020-01-07 20:50 ` Daniel Borkmann
2020-01-07 20:51 ` Daniel Borkmann
2020-01-08 0:21 ` Daniel Borkmann
2020-01-08 1:52 ` Martin Lau
2020-01-08 16:53 ` Daniel Borkmann
2020-01-08 18:41 ` Martin Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 07/11] bpf: tcp: Support tcp_congestion_ops in bpf Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 08/11] bpf: Add BPF_FUNC_tcp_send_ack helper Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 09/11] bpf: Synch uapi bpf.h to tools/ Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 10/11] bpf: libbpf: Add STRUCT_OPS support Martin KaFai Lau
2019-12-31 6:21 ` [PATCH bpf-next v3 11/11] bpf: Add bpf_dctcp example Martin KaFai Lau
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